Delayed response to VCS commands observed on nodes with several resources and system has high CPU usage or high swap usage [3208239]

You may experience a delay of several minutes in the VCS response to commands if you configure large number of resources for monitoring on a VCS node and if the CPU usage is close to 100 percent or swap usage is very high.

Some of the commands are mentioned below:

# hares -online

# hares -offline

# hagrp -online

# hagrp -offline

# hares -switch

The delay occurs as the related VCS agent does not get enough CPU bandwidth to process your command. The agent may also be busy processing large number of pending internal commands (such as periodic monitoring of each resource).

Workaround: Change the values of some VCS agent type attributes which are facing the issue and restore the original attribute values after the system returns to the normal CPU load.

Back up the original values of attributes such as MonitorInterval, OfflineMonitorInterval, and MonitorFreq of IMF attribute.

If the agent does not support Intelligent Monitoring Framework (IMF), increase the value of MonitorInterval and OfflineMonitorInterval attributes.